The School Manage SystemApplication · The School Manage System Project

CVE-2020-10507

CRITICAL · 9.8 CVSS v3.1 Published 2020-04-15
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
The School Manage System before 2020, developed by ALLE INFORMATION CO., LTD., contains a vulnerability of Unrestricted file upload (RCE) , that would allow attackers to gain access in the hosting machine.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

The School Manage System before 2020 contains an unrestricted file upload vulnerability that allows attackers to upload malicious files (such as web shells) to the server, leading to remote code execution. Attackers can exploit this to gain full access to the hosting machine.

MitigationImplement strict file upload validation including file type whitelisting, file content analysis, renaming uploaded files, storing uploads outside the webroot, and disabling script execution in upload directories.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
The School Manage SystemApplication
Affected:all versions

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Confirm School Manage System installation
    Check for the presence of School Manage System application files in the web server document root. Look for directories or files containing 'school' or 'schoolmanage' in the web root path.
    Affected if The application files are found in the web server's accessible directories.
  2. Identify file upload endpoint
    Search the application source code or web directory for upload-related scripts, forms, or handlers. Look for file input fields and POST request handlers that process file uploads.
    Affected if A file upload feature exists and is accessible via the web interface.
  3. Check file type validation
    Examine the upload handler code for server-side validation of file types. Look for whitelisting or content-checking logic before file storage.
    Affected if No server-side file type validation exists, or validation can be easily bypassed.
  4. Verify upload storage location
    Check where uploaded files are stored relative to the web root. Look for upload directories inside publicly accessible web paths.
    Affected if Uploaded files are stored within the web-accessible directory structure.
  5. Check script execution settings
    Inspect the web server configuration for the upload directory. Determine if script execution is permitted for files in the upload storage location.
    Affected if The upload directory allows execution of uploaded file types (e.g., PHP, JSP, ASP files can be executed).

If the School Manage System is installed with an accessible file upload feature that lacks proper validation, stores files in web-accessible locations, and permits script execution, the environment is affected by CVE-2020-10507.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement strict file upload validation including file type whitelisting, file content analysis, renaming uploaded files, storing uploads outside the webroot, and disabling script execution in upload directories.

Fix this in The School Manage System Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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Scan for this in your stack

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dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2020-10507 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
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